Re: 1950 vs Modern Quaker State Oil Comparison
Dad spent 45 years working for Texaco, starting when it was called The Texas Company. I recall lots of research reports regarding engine lubrication laying around the house back in the 50's and 60's. Typically, these featured photos of wear patterns for different oil formulations after a period of miles. Texaco used the company cars driven by its salesmen for many of these tests.
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